NSTS Bancorp, Inc. Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Loans and Allowance for Loan Losses - Aging of Bank's Loan Portfolio (Details)

Note 3 - Loans and Allowance for Loan Losses - Aging of Bank's Loan Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Loans	$ 97,288	$ 96,501
Non-accrual	219	102
First Mortgage Loans [Member]
Loans	97,141	96,129
First Mortgage Loans [Member] \| One To Four Family Residential [Member]
Loans	89,237	88,028
Non-accrual	219	102
First Mortgage Loans [Member] \| Multifamily [Member]
Loans	3,698	3,497
Non-accrual	0	0
First Mortgage Loans [Member] \| Commercial Real Estate [Member]
Loans	4,206	4,604
Non-accrual	0	0
Consumer Portfolio Segment [Member]
Loans	147	372
Non-accrual	0	0
Financial Asset, 31 to 89 Days Past Due [Member]
Loans	177	0
Financial Asset, 31 to 89 Days Past Due [Member] \| First Mortgage Loans [Member] \| One To Four Family Residential [Member]
Loans	177	0
Financial Asset, 31 to 89 Days Past Due [Member] \| First Mortgage Loans [Member] \| Multifamily [Member]
Loans	0	0
Financial Asset, 31 to 89 Days Past Due [Member] \| First Mortgage Loans [Member] \| Commercial Real Estate [Member]
Loans	0	0
Financial Asset, 31 to 89 Days Past Due [Member] \| Consumer Portfolio Segment [Member]
Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0	41
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| First Mortgage Loans [Member] \| One To Four Family Residential [Member]
Loans	0	41
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| First Mortgage Loans [Member] \| Multifamily [Member]
Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| First Mortgage Loans [Member] \| Commercial Real Estate [Member]
Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Consumer Portfolio Segment [Member]
Loans	0	0
Financial Asset, Past Due [Member]
Loans	396	143
Financial Asset, Past Due [Member] \| First Mortgage Loans [Member] \| One To Four Family Residential [Member]
Loans	396	143
Financial Asset, Past Due [Member] \| First Mortgage Loans [Member] \| Multifamily [Member]
Loans	0	0
Financial Asset, Past Due [Member] \| First Mortgage Loans [Member] \| Commercial Real Estate [Member]
Loans	0	0
Financial Asset, Past Due [Member] \| Consumer Portfolio Segment [Member]
Loans	0	0
Financial Asset, Not Past Due [Member]
Loans	96,892	96,358
Financial Asset, Not Past Due [Member] \| First Mortgage Loans [Member] \| One To Four Family Residential [Member]
Loans	88,841	87,885
Financial Asset, Not Past Due [Member] \| First Mortgage Loans [Member] \| Multifamily [Member]
Loans	3,698	3,497
Financial Asset, Not Past Due [Member] \| First Mortgage Loans [Member] \| Commercial Real Estate [Member]
Loans	4,206	4,604
Financial Asset, Not Past Due [Member] \| Consumer Portfolio Segment [Member]
Loans	$ 147	$ 372